Lol same here! Mine are from South Asia! 😛
They’re ridiculously good! The illustrations just do such a great job explaining every motion and force on each part of the body.
If you like these books, I highly recommend Yoga Anatomy: http://www.amazon.com/Yoga-Anatomy-2nd-Edition-Leslie-Kaminoff/dp/1450400248
Also great illustrations, but it gives a solid understanding of how and why the neuromuscular system works with not only breathing, but every other system in the body. The pdf version is pretty nice too. 😉